help what to do now??

I have been on low carb diet for a year and lost 80lbs however my weight has been stalled since October, i've only lost 5 lbs since then, i gain a few, lose one, gain one, its back and fourth. Obviously my body is telling me its not working anymore.
My question is where do i go from here? Im afraid to start eating carbs but i know something has to change as my body is to use to this lifestyle.
Any advice would be greatly appreciated.

I eat to eggs with 1 slice of cheese, much on brocchli and have tuna fish for dinner with mayo and olives, basically thats it through the week. i walk 1 mile 3xweek which just started a couple of weeks ago.
somebody told me about the 17 day diet would this work switching from low carb to having some carbs without a weight gain?